the president only arrived the day of debate while mitt romney had been in denver since monday. the president only had a few hours to adjust. ann romney will guest host good morning amon wednesday. >> she will appear during the 8:00 hour. she's one of several celebrities including oprah winfrey and steven colbert who are filling in for robin roberts. abc is in talks with first lady michelle obama for a similar guest appearance to happen before next month's election. >> of a chaotic scene caught on tape, a raging apartment fire in northwest d.c. firefighters rushed to save people trapped inside. four people were taken to a hospital. brianne carter joins us from k street. >> this was a fast-moving fire according to residents. there is boarded up by firefighters after all this happened. residents say it was very scary. shooting straight up smoke and flames quickly covered the apartment building while residents were still inside. >> we ran inside to get people out. >> zack erin peterson and several others tried to help their neighbors, but the fire was too much. firefighters used a